working on get api cus feature

shared/utils/cusEntUtils/convertCusEntUtils.ts

@@ -0,0 +1,107 @@
+import { Decimal } from "decimal.js";
+import {
+	entToOptions,
+	type FullCusEntWithFullCusProduct,
+	type FullCustomerEntitlement,
+	getCusEntBalance,
+	getStartingBalance,
+} from "../../index.js";
+import { cusEntToCusPrice } from "../productUtils/convertUtils.js";
+import { getRolloverFields } from "./getRolloverFields.js";
+
+export const cusEntToKey = ({
+	cusEnt,
+}: {
+	cusEnt: FullCustomerEntitlement;
+}) => {
+	const ent = cusEnt.entitlement;
+	return `${ent.interval || "null"}-${ent.interval_count || 1}-${ent.feature.id}`;
+};
+
+export const cusEntToBalance = ({
+	cusEnt,
+	entityId,
+	withRollovers = false,
+}: {
+	cusEnt: FullCustomerEntitlement;
+	entityId?: string;
+	withRollovers?: boolean;
+}) => {
+	const { balance } = getCusEntBalance({
+		cusEnt,
+		entityId,
+	});
+
+	const rollover = getRolloverFields({
+		cusEnt,
+		entityId,
+	});
+
+	if (withRollovers && rollover) {
+		return balance + rollover.balance;
+	}
+
+	return balance;
+};
+
+export const cusEntToIncludedUsage = ({
+	cusEnt,
+	entityId,
+	withRollovers = false,
+}: {
+	cusEnt: FullCusEntWithFullCusProduct;
+	entityId?: string;
+	withRollovers?: boolean;
+}) => {
+	const rollover = getRolloverFields({
+		cusEnt,
+		entityId,
+	});
+
+	const { count: entityCount } = getCusEntBalance({
+		cusEnt,
+		entityId,
+	});
+
+	const cusProduct = cusEnt.customer_product;
+	const options = entToOptions({
+		ent: cusEnt.entitlement,
+		options: cusProduct.options,
+	});
+
+	const cusPrice = cusEntToCusPrice({ cusEnt });
+	const startingBalance = getStartingBalance({
+		entitlement: cusEnt.entitlement,
+		options: options || undefined,
+		relatedPrice: cusPrice?.price,
+		productQuantity: cusProduct.quantity || 1,
+	});
+
+	const total = new Decimal(startingBalance).mul(entityCount).toNumber();
+
+	if (withRollovers && rollover) {
+		return total + rollover.balance + rollover.usage;
+	}
+
+	return total;
+
+	// if (rollover) {
+	// 	total = new Decimal(total)
+	// 		.add(rollover.balance)
+	// 		.add(rollover.usage)
+	// 		.toNumber();
+	// }
+};
+
+export const cusEntToUsageLimit = ({
+	cusEnt,
+}: {
+	cusEnt: FullCusEntWithFullCusProduct;
+}) => {
+	const startingBalance = cusEntToIncludedUsage({
+		cusEnt,
+	});
+
+	if (cusEnt.entitlement.usage_limit) return cusEnt.entitlement.usage_limit;
+	return startingBalance;
+};